netdev - Re: [PATCHv3 next] net: add option to not create fall-back tunnels in root-ns as well

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Date:   Fri, 28 Aug 2020 06:53:15 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     maheshb@...gle.com
Cc:     netdev@...r.kernel.org, kuba@...nel.org, edumazet@...gle.com,
        mahesh@...dewar.net, maze@...gle.com, jianyang@...gle.com,
        rdunlap@...radead.org
Subject: Re: [PATCHv3 next] net: add option to not create fall-back tunnels
 in root-ns as well

From: Mahesh Bandewar <maheshb@...gle.com>
Date: Wed, 26 Aug 2020 09:05:35 -0700

> The sysctl that was added  earlier by commit 79134e6ce2c ("net: do
> not create fallback tunnels for non-default namespaces") to create
> fall-back only in root-ns. This patch enhances that behavior to provide
> option not to create fallback tunnels in root-ns as well. Since modules
> that create fallback tunnels could be built-in and setting the sysctl
> value after booting is pointless, so added a kernel cmdline options to
> change this default. The default setting is preseved for backward
> compatibility. The kernel command line option of fb_tunnels=initns will
> set the sysctl value to 1 and will create fallback tunnels only in initns
> while kernel cmdline fb_tunnels=none will set the sysctl value to 2 and
> fallback tunnels are skipped in every netns.
> 
> Signed-off-by: Mahesh Bandewar <maheshb@...gle.com>

Applied to net-next, thank you.